diff --git a/src/libsodium/crypto_verify/sodium/verify.c b/src/libsodium/crypto_verify/sodium/verify.c
index de06a3ea..d6c1a73c 100644
--- a/src/libsodium/crypto_verify/sodium/verify.c
+++ b/src/libsodium/crypto_verify/sodium/verify.c
@@ -6,52 +6,27 @@
 #include "crypto_verify_32.h"
 #include "crypto_verify_64.h"
 
-int
-crypto_verify_16(const unsigned char *x_, const unsigned char *y_)
-{
-    const volatile unsigned char *volatile x =
-        (const volatile unsigned char *volatile) x_;
-    const volatile unsigned char *volatile y =
-        (const volatile unsigned char *volatile) y_;
-    volatile uint_fast16_t d = 0U;
-    int i;
-
-    for (i = 0; i < 16; i++) {
-        d |= x[i] ^ y[i];
-    }
-    return (1 & ((d - 1) >> 8)) - 1;
-}
-
 size_t
 crypto_verify_16_bytes(void)
 {
     return crypto_verify_16_BYTES;
 }
 
-int
-crypto_verify_32(const unsigned char *x_, const unsigned char *y_)
-{
-    const volatile unsigned char *volatile x =
-        (const volatile unsigned char *volatile) x_;
-    const volatile unsigned char *volatile y =
-        (const volatile unsigned char *volatile) y_;
-    volatile uint_fast16_t d = 0U;
-    int i;
-
-    for (i = 0; i < 32; i++) {
-        d |= x[i] ^ y[i];
-    }
-    return (1 & ((d - 1) >> 8)) - 1;
-}
-
 size_t
 crypto_verify_32_bytes(void)
 {
     return crypto_verify_32_BYTES;
 }
 
-int
-crypto_verify_64(const unsigned char *x_, const unsigned char *y_)
+size_t
+crypto_verify_64_bytes(void)
+{
+    return crypto_verify_64_BYTES;
+}
+
+static inline int
+crypto_verify_n(const unsigned char *x_, const unsigned char *y_,
+                const size_t n)
 {
     const volatile unsigned char *volatile x =
         (const volatile unsigned char *volatile) x_;
@@ -60,14 +35,26 @@ crypto_verify_64(const unsigned char *x_, const unsigned char *y_)
     volatile uint_fast16_t d = 0U;
     int i;
 
-    for (i = 0; i < 64; i++) {
+    for (i = 0; i < n; i++) {
         d |= x[i] ^ y[i];
     }
     return (1 & ((d - 1) >> 8)) - 1;
 }
 
-size_t
-crypto_verify_64_bytes(void)
+int
+crypto_verify_16(const unsigned char *x, const unsigned char *y)
 {
-    return crypto_verify_64_BYTES;
+    return crypto_verify_n(x, y, crypto_verify_16_BYTES);
+}
+
+int
+crypto_verify_32(const unsigned char *x, const unsigned char *y)
+{
+    return crypto_verify_n(x, y, crypto_verify_32_BYTES);
+}
+
+int
+crypto_verify_64(const unsigned char *x, const unsigned char *y)
+{
+    return crypto_verify_n(x, y, crypto_verify_64_BYTES);
 }